public Column(string name, DataTypeToken dataType, ValueToken defaultValue, bool isPrimaryKey, bool autogeneratePrimaryKey,
bool isNullable,
ForeignKeyDetailsToken foreignKey,
int?maxLength,
bool isUnique)
{
if (foreignKey != null && isPrimaryKey)
{
throw new ArgumentException($"A column cannot be both a primary and foreign key. Column: {Name}.");
}
Name = name?.ToPostgresStyle() ?? throw new ArgumentNullException(nameof(name));
CSharpStyleName = ColumnPlaceholder.GetCSharpName(name);
CSharpStyleNameLower = ColumnPlaceholder.GetCSharpName(name, true);
DataType = dataType ?? throw new ArgumentNullException(nameof(dataType));
DefaultValue = defaultValue;
IsPrimaryKey = isPrimaryKey;
AutogeneratePrimaryKey = autogeneratePrimaryKey;
IsNullable = isNullable;
ForeignKey = foreignKey;
MaxLength = maxLength;
IsUnique = isUnique;
}
public IEnumerable <IElephantToken> Tokenize(string input)
{
var lastWasNewline = false;
for (int i = 0; i < input.Length; i++)
{
var c = input[i];
if (IsNewline(c))
{
if (lastWasNewline)
{
continue;
}
lastWasNewline = true;
yield return(NewLineToken.Value);
continue;
}
lastWasNewline = false;
if (char.IsWhiteSpace(c))
{
continue;
}
switch (c)
{
case ',':
yield return(CommaToken.Value);
break;
case '[':
yield return(ReadValue(input, ref i));
break;
case '{':
yield return(OpenTableToken.Value);
break;
case '}':
yield return(CloseTableToken.Value);
break;
default:
var result = ReadTillEnd(input, ref i, out var bracketed);
if (Tokens.TryGetValue(result, out var factory))
{
yield return(factory());
break;
}
var dotIndex = result.IndexOf('.');
if (!string.IsNullOrEmpty(bracketed))
{
if (dotIndex >= 0)
{
var schema = result.Substring(0, dotIndex);
var table = result.Substring(dotIndex + 1);
yield return(new ForeignKeyDetailsToken(table, bracketed, schema));
break;
}
yield return(new ForeignKeyDetailsToken(result, bracketed));
break;
}
if (dotIndex >= 0)
{
yield return(new ColumnTableReferenceToken(result.Substring(0, dotIndex), result.Substring(dotIndex + 1)));
break;
}
if (DataTypeToken.TryParse(result, out var dataTypeToken))
{
yield return(dataTypeToken);
break;
}
yield return(new NameToken(result));
break;
}
}
}